Optical cable used for strain sensing test for deep sea

Abstract

The invention discloses an optical cable used for a strain sensing test for deep sea, and is characterized in that light-guide fiber is taken as a strain testing unit, a layer of UV (Ultra Violet) anti-skid curing material layer is coated on the light-guide fiber, a silicone scream jacket is coated on the UV anti-skid curing material layer, and a seamless embossing stainless steel band is longitudinally coated on the silicone scream jacket. The optical cable has the advantages that an embossing stainless steel pipe is taken as a jacket of a strain cable, so that the problem of hydrolysis resistance and seawater corrosion resistance can be solved, the bending performance and the side pressure resistance of the strain cable can be improved through an embossing structure, and meanwhile, friction is improved through a concave-convex structure, and the external force is effectively transferred to an optical fiber; the silicone scream jacket is applied in the optical cable, so that ageing resistance of the optical cable is improved, and meanwhile, the external force is effectively transferred to a fiber core part; the UV anti-skid curing material is utilized on the surface of the optical fiber, so that the optical fiber and the silicone scream are effectively stuck without slippage, thus the optical cable can be used in the waterproof, alkali-resisting and corrosion-resistant deep seat environment.

Description

technical field [0001] The invention relates to an optical cable, in particular to an optical cable for deep sea strain sensing test. Background technique [0002] Optical fiber strain sensing technology is a testing technology based on the background of deformation caused by optical fiber elongation under force. The key point is that the force can be effectively transmitted to the optical fiber when the optical cable is subjected to external force. Therefore, it is required that there is no slippage between the optical fiber and the protective sleeve, and simultaneous extension and deformation are required. The existing strain sensing optical cable is not suitable for underwater use, especially in seawater environments, because of its simple structure and plastic materials. And the strain test of the subsea platform cannot be realized. [0003] Therefore be badly in need of a kind of novel deep-sea strain sensing test optical cable to solve this problem existing in existin...

AI Technical Summary

Problems solved by technology

Therefore, it is required that there is no slippage between the optical fiber and the protective sleeve, and simultaneous extension and deformation are required. The existing strain sensing optical cable is not suitable for underwater use, especially in seawater environments, because of its simple structure and plastic materials. and strain tests on subsea platforms are not possible

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